package com.ruoyi.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";
    public static String MM_DD = "MM-dd";

    public static String YYYY_MM_DD = "yyyy-MM-dd";
    public static String MM_DD_MM_SS = "MM-dd HH:mm";
    public static String MM_SS = "HH:mm";
    public static String YYYY_MM_DD_MM_SS = "yyyy-MM-dd HH:mm";
    public static String YYYYnMMyDD = "yyyy年MM月dd日";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";


    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
    public static String  HH = "HH";
    public static String  mm = "mm";
    public static String split = "yyyy_MM_dd_HH_mm_ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    public static Date getYesterday() {
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.DATE, -1);
        String day = new SimpleDateFormat("yyyy-MM-dd").format(cal.getTime());
        try {
            return new SimpleDateFormat("yyyy-MM-dd").parse(day);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }

    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String getSplit() {
        return dateTimeNow(split);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        if (null == date) {
            return "";
        }
        return parseDateToStr(YYYY_MM_DD, date);
    }
    public static final String dateTimeYMDHSM(final Date date) {
        if (null == date) {
            return "";
        }
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, date);
    }

    public static final String dateTimeHMS(final Date date) {
        if (null == date) {
            return "";
        }
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, date);
    }

    public static final String dateTimenyr(final Date date) {
        return parseDateToStr(YYYYnMMyDD, date);
    }

    public static Date addDate(int day) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.add(Calendar.DATE, day);
        return calendar1.getTime();
    }
    public static Calendar addDateRCalendar(int day) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.add(Calendar.DATE, day);
        return calendar1;
    }
    public static Calendar dateToCalendar(Date d) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.setTime(d);
        return calendar1;
    }
    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }
    public static final Date dateTime(final String ts) {
       return dateTime(YYYY_MM_DD,ts);
    }


    public static Date addDate(Date date, long day) {
        // 得到指定日期的毫秒数
        long time = date.getTime();
        // 要加上的天数转换成毫秒数
        day = day * 24 * 60 * 60 * 1000;
        // 相加得到新的毫秒数
        time += day;
        // 将毫秒数转换成日期
        return new Date(time);
    }
    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }
    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDateD(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), YYYY_MM_DD);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }


    /**
     * 根据日期获得星期
     * @param date
     * @return
     */
    public static String getWeekOfDate(Date date) {
        String[] weekDaysName = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
        //String[] weekDaysCode = { "0", "1", "2", "3", "4", "5", "6" };
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int intWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
        return weekDaysName[intWeek];
    }

    public static String dateToStr(Date date){
        if (date == null)
        {
            return null;
        }
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);

        try
        {
            return simpleDateFormat.format(date);
        }
        catch (Exception e)
        {
            return simpleDateFormat.format(new Date());
        }
    }
}
